Supervisory Control & Data Acquisition DAQ Networking
Elements in DAQ Networking Data Acquisition and Control Cards Master boards Remote I/O Modules Converter I/O Expansion Board Embedded Controllers Compact Embedded Controller Communication Controller
Feature of Remote I/O Modules Variant I/O Modules RS-485 Network 115.2K Baud Rate Maximum Self-Turner Good Expansibility Wide Voltage Source (10~30VDC) 3000 VDC Isolated Protection
Variant Remote I/O Modules Analog Input
V mV mA Thermocouple
Analog Output
V mV mA
Digital Input
Isolated Non-Isolated
Digital Output
Photo Open Collector Relay
Counter
Counter Frequency
Noise Resistance Isolated Protection
1.2Km (up to 4.8Km by Repeater)
Noise
D+
Cross Talk
Deliver
Receiver Signal
Signal (DT)=(D+)-(D-)
Noise
D-
(DT)=((D+)+Noise) - ((D-)+Noise)
Ground
Self-Tuner RS-485 type PLC Data bit: 12 bits 38400 bps RS-485 type PLC Data bit: 12 bits 9600 bps
Variant Baud Rate Variant Data Format Auto-Change Direction
Remote modules Data bit: 10 bits can be 1200, 2400 ….., 115200 bps
Wireless modem Data bit: 10 bits 19200 bps
RS-232 Device Data bit: 11 bits 9600 bps
Interface converter, for converting RS-232 to RS-422 and RS-485, with electrical isolation, 2 channels
Bidirectional, wireless, 2400 MHz transmission system (European version), consisting of 2 transceivers (transmitter and receiver) and two antennas with connecting cable
Factory Line Wireless Bluetooth Access Point
Fieldline Modular Wireless IO set, consisting of: Wireless IO base station for one Wireless IO terminal and Wireless IO device, 8 digital inputs, 8 digital outputs
Wireless-IO module, 16 digital inputs, 16 digital outputs, 2 analog inputs, 2 analog outputs
Expansibility COM1
RS-232
RS-485
COM2 COM3
.... . . .
Converter #01 RS-232
#FF
#02
RS-485
.... . . .
Converter #01
#FF
#02
: : RS-232
RS-485
.... . . .
Converter #01
#02
#FF
Expansibility RS-232
RS-485
Converter
RS-485
.... . . .
Comm. Controller (Address-1) #01
#02
#FF
RS-485
.... . . .
Comm. Controller (Address-2) #01
#02
#FF
: : RS-485
.... . . .
Comm. Controller (Address-n) #01
#02
#FF
Expansibility TCP/IP
RS-485
PLC
Hub
.... .
(IP-1)
#01
#FF
RS-485 TCP/IP
PLC
.... .
(IP-2)
#FF
#01 : : TCP/IP
RS-485
PLC (IP-n)
.... . #01
#FF
Expansibility Router
TCP/IP
RS-485
PLC
Hub
.... .
(IP-1)
#01
#FF
RS-485
Router
TCP/IP
PLC
.... .
(IP-2)
#FF
#01
Hub
: :
TCP/IP
TCP/IP
RS-485
PLC (IP-n)
.... . #01
#FF
Command Protocol of Modules Use ASCII Command Use Asynchronous Protocols
1 Start Bit 8 Data Bits Non Parity 1 Stop Bit
Typical Command Format Leading Character Address Character (00~FF) Command and Parameter Checksum (2 Character) CR (0x0D) for End of Command Example $01M[Chk](CR) ………………..Read Module ID (Name) C: “$01M…\r”
Develop Tool Kits Win32 DLL Developing Application
VB, VC, BCB, Delphi
Dos Library
TC, BC
ActiveX (OCX)
VB, VC, BC, Delphi
Library for SCADA (LabView, Intouch, Citect, WinCC,…) Windows/DOS Based Diagnostic/Utility Tool DDE Server OPC Server
Features of DAQ Remote Module Built-In DOS, MiniOS7, Windows XP Embedded, Linux Embedded… Program Download Port: COM1 or Ethernet Port Remote Configuration, Diagnostics Operating Temperature: -25 C ~ 75 C Storage Temperature:-40 C ~ 80 C
MiniOS7 Files Download and Execution (.exe, .com, .bat) Use Autoexec.bat Can’t Run Another Process ( Function system() of C) Warm Up Time
0.1 Second for 20 MHz CPU 0.05 Second for 40 MHz CPU 0.5 Second for 8k Main Unit
Typical Application Application VxComm Specified Driver
Rs-232
TCP/IP Application Program
TCP/IP
Virtual COM Ethernet I/O
Browser ( IE, Netscape)
Web server
Hub
PLC 7188E series Ethernet RS-232 RS-485
Device
I/O Expansion Bus X server TCP/IP Server Virtual COM X server Web server
I/O expansion module
Virtual COM Application
Specified Driver
Ethernet 10M
Hub
COM1
COM 3
COM2
COM 4
PLC (IP-1)
.... . #01
#FF
COM1
COM 5
COM2
COM 6
PLC (IP-2)
.... . #01
#FF
COM1
COM 254
COM2
COM 255
PLC (IP-n)
.... . #01
#FF
Ethernet I/O Application Ethernet 10M
Hub
IP(1) Port 10000 COM1 PLC (IP-1)
IP(1) Port 10001
COM2
IP(1) Port 10002 .... . #01
#FF
COM1 PLC (IP-2)
IP(2) Port 10000 IP(2) Port 10001
COM2
IP(2) Port 10002 .... . #01
#FF IP(n) Port 10000
COM1 PLC (IP-n)
IP(n) Port 10001
COM2
IP(n) Port 10002 .... . #01
#FF
